Note 78 — Chapter II · The Canon of Pure Reason

All practical conceptions relate to objects of pleasure and pain, and consequently—in an indirect manner, at least—to objects of feeling. But as feeling is not a faculty of representation, but lies out of the sphere of our powers of cognition, the elements of our judgements, in so far as they relate to pleasure or pain, that is, the elements of our practical judgements, do not belong to transcendental philosophy, which has to do with pure à priori cognitions alone.